Seven children, between ten and thirteen years old, had elevation of the
medial plateau of the tibia for correction of severe varus deformity
secondary to Blount disease. The deformity was severe (grade V or VI
according to the system of Langenskiold and Riska) in all patients; the
average preoperative varus deformity, determined by the angle formed by the
femoral shaft and the tibial shaft, was 25 degrees. The goal of the
operation was restoration of a more normal configuration of the articular
surface of the proximal end of the tibia. This was accomplished by direct
elevation of the depressed medial tibial plateau. All patients had an
osteotomy to correct the alignment of the tibia. The osteotomy was
performed concomitant with the elevation of the plateau in three patients,
before the elevation in three, and after the elevation in one patient. Four
patients had a concomitant osteotomy of the femur to align the knee joint
parallel to the floor. The results were good in five patients and fair in
two.